Test CloudStack API Using Simulator

In this post, I am going to test how to CloudStack API works using Simulator.

환경

OS: Ubuntu 16.04
Java: openjdk version "1.8.0_131"
Scala: 2.10
Build Tool: Apache Maven 3.5.0
IDE: IntelliJ
CloudStack(simulator): 4.9

Run CloudStack simulator on a docker container

It is very easy to run CloudStack simulator on a docker container.
htps : // 후 b. 도 c r. 이 m / r / c ぉ ds ck / 시무와 r /
Just execute the following command on your docker server.

docker pull cloudstack/simulator
docker run --name cloudstack -d -p 8080:8080 cloudstack/simulator

Then, you can connect to CloudStack management web GUI.

Generate API key and Secret key to access API

Following this guide htp // // cs.ぉ ds ck. 아파치. 오 rg / 엔 / ㅁ st /에서 v. HTML , you need to generate keys to access CloudStack via API. You can generate the keys on GUI.



Click "generate keys", then API key and Secret key are created.

Generate signature

To send HTTP GET request to CloudStack, you need to generate signature by encording api key and request URL. As it is a little bit complicated process for coding in Scala, and because this is just for a test purpose, I coded a program to send HTTP GET request in Python just by following the instruction in the guide.

import urllib2
import urllib
import hashlib
import hmac
import base64

baseurl='http://10.32.2.56:8080/client/api?'
request={}
request['command']='listUsers'
request['response']='json'
request['apikey']='***omitted***'
secretkey='***omitted***'

request_str='&'.join(['='.join([k,urllib.quote_plus(request[k])]) for k in request.keys()])

sig_str='&'.join(['='.join([k.lower(),urllib.quote_plus(request[k].lower().replace('+','%20'))])for k in sorted(request.iterkeys())])
#sig_str 'apikey=plgwjfzk4gys3momtvmjuvg-x-jlwlnfauj9gabbbf9edm-kaymmailqzzq1elzlyq_u38zcm0bewzgudp66mg&command=listusers&response=json'
sig=hmac.new(secretkey,sig_str,hashlib.sha1)
sig=hmac.new(secretkey,sig_str,hashlib.sha1).digest()
sig=base64.encodestring(hmac.new(secretkey,sig_str,hashlib.sha1).digest())
sig=base64.encodestring(hmac.new(secretkey,sig_str,hashlib.sha1).digest()).strip()
sig=urllib.quote_plus(base64.encodestring(hmac.new(secretkey,sig_str,hashlib.sha1).digest()).strip())
req=baseurl+request_str+'&signature='+sig
res=urllib2.urlopen(req)
print res.read() 

Confirm CloudStack API returns expected values

The simulator returned values ​​as expected, therefore, this simulator can be used for further investigation.

C:\Users\>activate python27
(python27) C:\Users\>python "C:\Users\\Desktop\temp.py"
{"listusersresponse":{"count":1,"user":[{"id":"4bc88465-6b5a-11e7-9f99-0242ac110002","username":"admin","firstname":"Admin","lastname":"User","email":"[email protected]","created":"2017-07-18T01:42:02+0000","state":"enabled","account":"admin","accounttype":1,"usersource":"native","roleid":"56866a3d-6b5a-11e7-9f99-0242ac110002","roletype":"Admin","rolename":"Root Admin","domainid":"4bc8433a-6b5a-11e7-9f99-0242ac110002","domain":"ROOT","apikey":"AJ_88MyUSU8sDqcHd1JXQnW9T-_SbkV6-aCCpuSq8PvS-MH6r-uy-GBkX-1QqeZ49a-glnbL_Vvu2dz_en9XZw","accountid":"4bc8631f-6b5a-11e7-9f99-0242ac110002","iscallerchilddomain":false,"isdefault":true}]}}